Frame mod 1500x1500 ox max, plates needed!

Builder

I'm intending the mod pictured below to reduce lateral flex in the y profiles, which there is a fair bit atm, and need some aluminum cut for the corner plates. can anyone help? cheers.... oh and just so you know, if anyone is thinking of doing the same.. this is something i just thought up and is not tried and tested. personally i think it will work - the extra vwheels will go both on top and below the extra profile with eccentrics on the bottom wheels. thinking i can also run my cable carrier on the extra profile as well but please feel free to comment with any concerns

Builder

Thanks sgspenceley, I shall email over the drawing for a quote. yes, forgot to mention i am in the UK, so can imagine shipping from canada may be a little rich for me tbh but we shall see.. thanks, in mean time still looking for quotes people. cheers

Builder

Instead of using a 40mm on the horizontal I would use a 20mm and a second 80mm (or is it 60mm) on the vertical. The H beam is way stronger and will compensate for the vertical flex. Not much more expensive but way stronger.

Just my $0.02

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Thanks for your input justin, the horizontal is a 60mm.. im not sure a 20 or 40 would be rigid enough. the flex i'm trying to reduce is in the horizontal direction. this is a modification to my existing frame so adding an extra 80mm vertical profile isnt really an option now as that would mean widening the two y gantry plates which wouldn't be ddifficult just extra vwheels n spacers. but im my case that would mean buying longer x profiles as well as they go through the inner gantry plate and attach to the outer plate. (see pic) otherwise that would be a better solution, just not ready to rebuild the entire frame just yet. hence this mod.

your only attached at the ends, don't know how much flex it's going to take out.
Bob

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very true, tho the flex i am trying to reduce is in the horizontal direction hence why i have laid the profile on its side, and id say a 60mm profile is pretty rigid across its widest dimension. you have however inspired an idea in the event of it not doing the trick to add leg supports, and bolt to the stand. thanks for the input!

Builder

Looking at the picture, Jonny, I see you are using already 2 20x40 rails. All you should have to do is add a third 20x40, BUT, you have to boltthem together at various places. That should give you enough strength to overcome a lot of horizontal force. You have the rails bolted together now too, right??? at more than just three places (beginning, end and middle), right?

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No I only have the one 20x80 on the y? there are no 2040's? And can't add more as explained above. your looking at the x, which is 2 2060's. the flex this mod hopefuly will reduce is in the y. as for the x have done exactly that, they are bolted and epoxied... still has flex in the x mind u. but thats another story.